490001111 has 2 divisors, whose sum is σ = 490001112. Its totient is φ = 490001110.

The previous prime is 490001087. The next prime is 490001117. The reversal of 490001111 is 111100094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 490001111 - 2¹⁰ = 490000087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 490001111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490001117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245000555 + 245000556.

It is an arithmetic number, because the mean of its divisors is an integer number (245000556).

Almost surely, 2^490001111 is an apocalyptic number.

490001111 is a deficient number, since it is larger than the sum of its proper divisors (1).

490001111 is an equidigital number, since it uses as much as digits as its factorization.

490001111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 490001111 is about 22135.9687160964. The cubic root of 490001111 is about 788.3741121488.

The spelling of 490001111 in words is "four hundred ninety million, one thousand, one hundred eleven".